Question

I’m trying to do this with delayed_job and HTTParty:

HTTParty.delay.get('http://example.com')

It successfully saves to the DJ table as this:

--- !ruby/object:Delayed::PerformableMethod
object: !ruby/object:Module {}
method_name: :get
args:
- http://example.com

The problem is that it doesn’t have any mention of HTTParty in that handler, so when I try to run the jobs, I get this error:

undefined method `get' for #<Module:0x007fff1095b9a8>

I’m using delayed_job (3.0.0.pre), delayed_job_active_record (0.2.1) and httparty (0.7.7) in a rails 3.0.6 app.

So how can I make delayed_job and HTTParty play nice together?

Answer 1

Wrap the code in an instance method.

Example:

# User.rb model
include HTTParty

# Get a URL
def start_the_party(url)
  HTTParty.get(url)
end
handle_asynchronously :start_the_party

Then you just call it somewhere else like:

some_user.start_the_party

or if you need access to the successful get request contents

some_results = some_user.start_the_party

---

Edit

If you’re going to make it a class method, then the code will be like this:

Example:

# User.rb model
include HTTParty

# Get a URL
class << self
  def start_the_party(url)
    HTTParty.get(url)
  end
  handle_asynchronously :start_the_party
end

Then you just call it somewhere else like:

User.start_the_party

or if you need access to the successful get request contents

some_results = User.start_the_party

The difference is that User.some_method_name is called on the User model whereas some_user.some_method_name is called on an instance of the User model (i.e. the current user object).